AIS-R31B Protein Refractometer

The AIS-R31B refractometer is suitable for human and veternarians. It provides quick and accurate vital fluid levels of human and animals. The AIS-R31B offers a triple scale including the Protein in Serum, Urine Specific Gravity (SG) and Reflective Index (RI). The model has a built-in Automatic Temperature Compensation (ATC) which automatically adjust itself to correct temperature discrepancies.

Measurement range:

  • 0-12g/dl (Protein in Serum)
  • 1.000-1.050sg (Urine Specific Gravity)
  • 1.3330-1.3600RI (Reflective Index)

Minimum Scale:

  • 0.2g/gl (Protein in Serum)
  • 0.002sg (Urine Specific Gravity)
  • 0.00025RI (Reflective Index)


Automatic Temperature Compensation (ATC) : 10-30°C